11-20000+ Waterproof Snow Jackets

What are 11-20,000mm+ waterproof snow jackets? These snow jackets feature a waterproof membrane that can hold up to and exceeding 11,000 – 20,000 mm of water before it starts to seep through the fabric. What conditions can they be used in? Jackets with an 11-15,000 mm rating are best used in moderate rain and average snow when high pressure is present. Pieces featuring a 16-20,000 mm rating can be used in heavy rain and wet snow also under high pressure. Opt for a higher rating for wetter conditions.